A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2T. The normal to the plane of the coil makes an angle of `60^(@)` with the direction of the magnetic field. The magnetic flux linked with the coil is

A circular coil of radius 10cm with 100 turns carrying a current of 0.5A lies in a magetic field of 2 T such that the normal drawn to the plane of the coil makes an angles theta with the direction of the field. Work done in rotating the coil to change the angle theta from 0^(@) to 180^(@) is

A square coil of side 10 cm consists of 20 turns and carries current of 12 A. The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30^(@) with the direction of a uniform horizontal magnetic field of magnitude 0.80 T. What is the magnitude of torque experinced by the coil ?

A circular coil of area 0.1 m^(2) having 200 turns is placed in a magnetic field of 40 T. The plane of the coil makes 30^(@) with the field. If the field is removed for 0.1 s then the induced emf in the coil is

A rectangular loop of area 0.06 m2 is placed in a magnetic field of 0.3T with its plane (i) normal to the field (ii) inclined 30^(@) to the field (iii) parallel to the field. Find the flux linked with the coil in each case.

A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5.0 A, what is the (a) total torque on the coil, (b) total force on the coil, (c) average force on each electron in the coil due to the magnetic field? (The coil is made of copper wire of cross-sectional area 10^(-5) m^2 , and the free electron density in copper is given to be about 10^29 m^(-3) .)

The magnetic field at the centre of the current carrying coil is

1. A coil of area 2 cm^2 with turns 500 is placed in a magnetic field of 0.5 T with its plane parallel to field. The flux linked with the coil is